<template>
    <div style="background-color: teal;">
        我是又一个会哈气的组件{{message}}
        <button @click="greet()">问候</button>
    </div>
</template>
<script>
    export default{
        data() {
            return {
                message:'hello,friends!'
            }
        },
        methods: {
            greet(){
                this.message='hello,'+this.$attrs.name+"!"
            }
        }
    }
</script>